<second thought>
 Whenever I've thought of doing any bechmarking involving file i/o, I've always been stumped as to how I could be sure that filesystem caching didn't mess up the results.
How can I be sure that doing a test X number of times will give results comparable to executing the code once in a real program? With such extremely different methods of reading I can only imagine that it's even harder to be sure that caching isn't helping / hindering individual tests.
</second thought>

<first thought>
Fairly impressive differences there!
</first thought>

In reply to Re: Reading from the end of a file. by fireartist
in thread Reading from the end of a file. by BrowserUk

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